50x50 Polarization-Insensitive Silicon Photonic MEMS Switches: Design and Experiment

We report on a polarization-insensitive silicon photonic MEMS switch with 50x50 ports. The switch employs a two-level waveguide-crossbar with MEMS-actuated polarization-insensitive couplers. The simulated and measured polarization-dependent losses are 1 dB and 8.5 dB, respectively.